You got a great point but when most people go through the scarezone, I think they're gonna be expecting to see the masks from the film, but your point makes sense seeing to the concept of just being anonymous during the whole thing.
Also, I really hope we get an opening scareamony each night involving the purge somehow. Could be as as simple as having the siren go off and having guests coming in or something along the lines of Hollywood's opening scareamony if we're lucky. Although I couldn't see it happening. One can dream though.